Improvement in machines for cutting sheet metal



i Cllll CHARLES E. Cnfm'rEQCE EAST 4's'Aoi-Inma MICHIGAN;

LettersPatcnt No. 112,418, Vdated March 7, 1871.

\ lMPnoy'EMENT in MACHINES-Fon cur-mie rsi-nzE-r-METAL.`

The Schedule referred to in these Letters Patent and maklng'part of the same.

l vTo all -whom 'it 'may concern,-

` `Be it known thatI, CHARLES B, .(lnonrn, of East d Saginaw, in the county of vSaginaw and State `of Michi'gan, have invented a new andvalnable Improvement `in Machines forCutting Sheet Metal; and I do hereby declare that the following is a full, clear, and

`exact decription of the construction and operation of thesame, reference beingr had to the annexed drawing making apart of gthis specification, and to the letters and figures` of `reference marked thereon.

l Fignrelljoft-he drawingis a representation of my machine `in plan view; y i y i Figure 2 is a transverse vertical section of the same `Eigure 3 is `afi-ont view of'` the cutters.y l

y My inventionis intended as an improvement upon tlie'Roy 8a Wilcox sqnaringgshears, and consists in the arrangement'otmechanism "for voperating the l i same, andralso in a finger-guard4 on the table .in front y fof the movable cutter. y

' 1 In order to enableiothers skilled in the art to which my invention appertains to make and use the same, I will now proceedllto describe its\constrnction` and operation.

` A represents the frame of the machine;

O', the stationary inclined cutter; and D, the movable'cutter.,- .i i,

y The movable cutterlD is attached to a rocking cut- `ter-head or bar,E,tu1-ning Vupon pivots aafand at each end of said head orbar is an arm, G, connected' by rods or barsH with cranks b b, one upon each end of a shaft, d, which has its bearings in the frame A.

Upon this shaft is a balance-wheel, I.

The cranks b bA are, by. rods or bars e e, connected with the treadle J, whereby a continual-motion is produced, s o that more work may be accomplished by the same labor.

With the addition Aof.' a pulley on the shaft d the V-machine can be run by steam or other power.

Atthe inner edge of the table B is placed a fingergnard, fi, for the protection of the operator.

Although these' improvements are mainly intended for the Ray St Wilcox sqnaring-shears, they may be 'used or applied to other machines of similar nature.`

Having thus fully described 'my invention,

i What I claim as new,'and desire to secure by Letters Patent, is l i The arrangement of the treadle J, two barsE, two cranks b, shaft d, balance-wheel I, two -bars H, two arms G, and the movable rocking cutter-head E, substantially as described.

In testimony that I claim the above I havehere-` unto subscribed my name in the presence of two wit-` nesses.

i CHARLES B. CHCATE.

Witnesses:

S. J. REYNOLDS, J. R. LoCKwooD. 

